peer entropy-label

Function

The peer entropy-label command enables the entropy label capability for a device to improve load balancing during traffic forwarding.

The undo peer entropy-label command cancels the existing configuration.

By default, the entropy label capability is not enabled for a device.

Format

peer peerIpv4Addr entropy-label

peer peerIpv4Addr entropy-label disable

undo peer peerIpv4Addr entropy-label

undo peer peerIpv4Addr entropy-label disable

Parameters

Parameter	Description	Value
peerIpv4Addr	Specifies the IPv4 address of a peer.	The value is in dotted decimal notation.
disable	Disable the entropy label forwarding capability.	-

Parameter

Description

Value

peerIpv4Addr

Specifies the IPv4 address of a peer.

The value is in dotted decimal notation.

disable

Disable the entropy label forwarding capability.

Views

BGP-IPv4 unicast address family view, BGP-Labeled address family view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
bgp	write

Usage Guidelines

Usage Scenario

If load balancing is uneven on a network, you can run the peer entropy-label command to enable the entropy label capability for the device. This capability is effective in scenarios where traffic is forwarded along received BGP routes that carry the entropy label. Therefore, you also need to run the peer advertise-entropy-label elc command on the peer to enable the peer to add the entropy label of the entropy label capability (ELC) type to routes to be advertised to the local device. The two configurations help equalize and improve the performance of load balancing.

After a peer is added to a peer group, the peer inherits the configuration of the peer group. If the entropy label capability is enabled on the local device and for the peer group, run the peer entropy-label disable command on the local device if this newly added peer does not need to have the entropy label capability.

Precautions

If the peer entropy-label command is run in the BGP-IPv4 unicast address family, the configuration takes effect only for labeled routes.

Example

# Enable a device to add the entropy label information to traffic to be forwarded in the IPv4 unicast address family.

<HUAWEI> system-view
[~HUAWEI] bgp 100
[*HUAWEI-bgp] peer 10.1.1.1 as-number 200
[*HUAWEI-bgp] ipv4-family unicast
[*HUAWEI-bgp-af-ipv4] peer 10.1.1.1 enable
[*HUAWEI-bgp-af-ipv4] peer 10.1.1.1 label-route-capability
[*HUAWEI-bgp-af-ipv4] peer 10.1.1.1 entropy-label

# Enable a device to add the entropy label information to traffic to be forwarded in the IPv4 labeled address family.

<HUAWEI> system-view
[~HUAWEI] bgp 100
[*HUAWEI-bgp] peer 10.1.1.1 as-number 200
[*HUAWEI-bgp] ipv4-family labeled-unicast
[*HUAWEI-bgp-af-ipv4-labeled] peer 10.1.1.1 enable
[*HUAWEI-bgp-af-ipv4-labeled] peer 10.1.1.1 entropy-label